Finding the Fourth Proportional to 88,606.31, 122,338.35 and 71,685.61

Step by Step Solution

1. Step 1: Write the proportion equation
   88,606.31 : 122,338.35 = 71,685.61 : x
2. Step 2: Convert to fraction form
   88,606.31/122,338.35 = 71,685.61/x
3. Step 3: Cross multiply
   88,606.31x = 122,338.35 × 71,685.61
4. Step 4: Simplify right side
   88,606.31x = 8,769,898,940.30
5. Step 5: Solve for x
   x = 8,769,898,940.30/88,606.31
6. Step 6: Final answer
   x = 98,976.01